4.1 Automatic entry into lisp mode

A buffer is automatically set to be in Lisp mode when such a file is displayed.

Alternatively, if you have files of Common Lisp code with extension other than
.lisp
, add the following code to your
.lispworks
file, substituting the extensions shown for your own. This ensures that Lisp mode is the major mode whenever a file with one of these extensions is viewed in the editor:

(editor:define-file-type-hook

("lispworks" "lisp" "slisp" "el" "lsp" "mcl" "cl")

(buffer type)

(declare (ignore type))

(setf (editor:buffer-major-mode buffer) "Lisp"))

Another way to make a Lisp mode buffer is the command New Buffer, and you can put an existing buffer into Lisp mode via the command Lisp Mode.